Bumpy black holes from spontaneous Lorentz violation

Details Bumpy black holes from spontaneous Lorentz violation Bumpy black holes from spontaneous Lorentz violation

2007-06-02

arxiv.org/abs/0706.0288v2

JHEP0711:083,2007

Physics

High Energy Physics

High Energy Physics - Theory

40 pages, 4 figures

Scientific paper

10.1088/1126-6708/2007/11/083

We consider black holes in Lorentz violating theories of massive gravity. We argue that in these theories black hole solutions are no longer universal and exhibit a large number of hairs. If they exist, these hairs probe the singularity inside the black hole providing a window into quantum gravity. The existence of these hairs can be tested by future gravitational wave observatories. We generically expect that the effects we discuss will be larger for the more massive black holes. In the simplest models the strength of the hairs is controlled by the same parameter that sets the mass of the graviton (tensor modes). Then the upper limit on this mass coming from the inferred gravitational radiation emitted by binary pulsars implies that hairs are likely to be suppressed for almost the entire mass range of the super-massive black holes in the centers of galaxies.

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